Omya Fillite 355 – Lightweight Ceramic Microspheres for Casting Resin, Plaster & Concrete
Omya Fillite 355 – Lightweight Ceramic Microspheres for Casting Resin, Plaster & Concrete
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Ordered and paid on a working day: usually ships the same day
Delivery to Netherlands: usually within 1 working day
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Ceramic microspheres to make casting materials lighter
Omya Fillite 355 is a light grey filler made of hollow ceramic microspheres, filled with CO2 and nitrogen. You mix Fillite into a casting resin or other casting material to lower the density of the end product. The spheres are 5 to 355 µm in size (106 to 150 µm on average), have a bulk density of 350 to 480 g/l and a melting point of 1200 to 1350 °C. You can use them in polyurethane, silicone, epoxy, polyester, plaster, concrete, cement and similar products. In polyurethane with a mix ratio of polyol : iso : Fillite of 1 : 1 : 1 by weight, your casting weighs about 25 % less than without filler.
Key benefits
- Lower weight: noticeably reduces the density of your casting.
- Widely applicable: for resins, silicones and mineral casting materials.
- Thicker pours: with filler you can cast exothermic casting products in thicker layers.
- Strong spheres: compressive strength 1500 to 3000 psi.
- Unlimited shelf life: provided you store the filler dry.
Typical applications
- ✓ Lighter castings in polyurethane, epoxy and polyester
- ✓ Weight saving in plaster, concrete and cement
- ✓ Ornaments and decorative castings
- ✓ Pastes and fillers at a high filler content
Processing
- Decide on the amount of filler: it depends on the material and the result you want.
- For polyurethane you can use polyol : iso : Fillite = 1 : 1 : 1 by weight. The casting then weighs about 75 % of a casting without filler.
- Mix the spheres in well, but not too long and not too intensively. Otherwise they break and lower the density less.
- The more filler, the more viscous the mixture. At an even higher filler content you get a paste.
Points to note
- ✓ Broken spheres lose their effect; avoid vigorous or prolonged mixing.
- ✓ With a new casting material, do a small test first to find the right dosage.
- ✓ Supplied in 20 kg bags.
- ✓ Unlimited shelf life when stored dry.
Professional support
Not sure how much Fillite you can mix into your resin or casting material? Email us at info@siliconesandmore.com and we will help you work it out.
| Type | hollow ceramic microspheres |
|---|---|
| Colour | light grey |
| Bulk density | 350-480 g/l |
| Density | 0.70-0.80 g/cm³ |
| Particle size | 5-355 µm, 106-150 µm on average |
| Melting point | 1200-1350 °C |
| Compressive strength | 1500-3000 psi |
| Composition | SiO2 55-65 %, Al2O3 27-33 %, Fe2O3 max. 6 % |
| Gas content of spheres | CO2 70 %, N2 30 % |
| Loss on ignition (1000 °C) | max. 2 % |
| Dosage PU | polyol : iso : Fillite = 1 : 1 : 1 by weight |
| Packaging | 20 kg |
| Shelf life | unlimited, provided stored dry |
Safety Information
No hazard classification is given for this product on this page. Fillite is a fine powder; work carefully and avoid creating dust when decanting and mixing. Wear gloves and eye protection and work in a well-ventilated area. Also follow the safety instructions of the casting material in which you use the filler. Always consult the supplied safety data sheet (SDS) for full information on hazards, handling, storage and first aid.| Safety Pictograms | Safety Data Sheets (SDS) |
|---|---|
Required protection (ISO 7010)
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Frequently asked questions
What is the delivery time for my order?
Orders placed and paid on working days are in most cases shipped the same day. Weekend orders are processed on the next working day.
Indicative delivery times: Netherlands usually within 1 working day, Belgium and Germany typically 1–2 working days, other countries depending on destination and carrier. These are guidelines, not guarantees: peak periods, public holidays or carrier delays can have an effect.
What is the return policy?
You have 30 days to return after receipt. Email info@siliconesandmore.com within 30 days of delivery with your name and order number. The full conditions are in our return policy.
How can I track my order?
As soon as your order has shipped, you'll receive a track & trace code by email. It can take up to 24 hours before the code is active.
I have a problem with my order – how do I reach you?
Contact us via our contact page or email info@siliconesandmore.com. We're happy to help you quickly.
Can I order as a business?
Yes. Apply for a business account; we review your application within 3 working days. After that you order while logged in and pay on invoice, with payment terms of 14 days after delivery.
EU businesses outside the Netherlands with a valid VAT number order with VAT reverse-charged (0%, intra-community supply). The VAT number is stored in your business account; it cannot be added to an order after it has been placed.